US PATENT SUBCLASS 219 / 720
.~.~ With display or alarm

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

678  DF  MICROWAVE HEATING {15}
702  DF  .~ With control system {8}
720.~.~ With display or alarm

DEFINITION

Classification: 219/720

With display or alarm:

(under subclass 702) Subject matter wherein the sensing device produces a humanly perceptive visual or hearing indication of a condition sensed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

506, for an electric resistance heating device with signal or indicating means.

SEE OR SEARCH CLASS

116, Signals and Indicators,

67+, for alarms.

340, Communications: Electrical, 500+, for alarms or display communications for condition responsive indicating systems.